Duro 38-42: Medium/Firm compound, recommended for carpet and asphalt tracks. Medium/Low traction, low/medium wear. Less chunking, longer lasting foam compound. Same foam used on World GT tires. _br__br__br_ _b_BSR 1/10th Foam Compounds:_/b_ _br__br_ _b_• Green_/b_ - Duro 30-35: Medium/soft compound. Recommended for both carpet and asphalt tracks. Medium/High traction, high wear. Also offered as a SPEC tire (front and rear)._br_ _b_• Blue_/b_ - Duro 40-45: Hard compound, available in fronts only. Recommended on banked carpet tracks, or as a RF tire in slower carpet oval classes. Low traction, medium wear. Also offered as a SPEC tire (fronts only). _br_ _b_• Pearl White_/b_ – Duro 25-30: Soft compound, recommended for mostly carpet tracks. High traction, but high wear._br_ _b_• White_/b_ - Duro 30-35: Medium/soft compound, recommended for mostly carpet tracks. Medium/High traction, medium wear. _br_ _b_• Gray_/b_ - Duro 35-40: Medium compound recommended for mostly carpet tracks. Medium traction, low/medium wear. Also offered as a SPEC tire (rear only)._br_ _b_• Gray/Silver_/b_ – Duro 35-40/45+: Dual-compound tire. Mostly Gray foam with Silver foam on the outside edge. Medium/Low traction, low/medium wear. Helps reduce traction roll on high-bite tracks when used as a RF tire. _br_ _b_• Black_/b_ – Duro 40-45: Hard compound, recommended for carpet and asphalt tracks. Low traction, low wear. Used mostly as a RF tire._br_ _b_• Pink_/b_ - Duro 25-30: Soft compound, recommended for carpet and asphalt racing. High traction, medium/high wear. Less chunking, longer lasting foam compound. _br_ _b_• Double Pink_/b_ - Duro 30-35: Soft/Medium compound, recommended for carpet and asphalt tracks. Medium/high traction, medium wear. Less chunking, longer lasting foam compound. _br_ _b_• Purple_/b_ - Duro 35-38: Medium compound, recommended for carpet and asphalt tracks. Medium traction, low/medium wear. Less chunking, longer lasting foam compound. _br_ _b_• Team Purple_/b_ – Duro 38-42: Medium/Firm compound, recommended for carpet and asphalt tracks. Medium/Low traction, low/medium wear. Less chunking, longer lasting foam compound. Same foam used on World GT tires._br_ _b_• Double Purple_/b_ - Duro 42-50: Firm compound, recommended on high traction carpet and asphalt tracks. Low traction, low wear. Less chunking, longer lasting foam compound._br_